{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-70461","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-08-13T15:20:00.117","lastModified":"2026-10-24T16:10:00.153","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"rsync 3.2.5 before 3.5.0 contains a heap out-of-bounds write vulnerability that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of a heap allocation by supplying a crafted files-from entry. Attackers can trigger the vulnerability against a read-only rsync daemon module by providing a files-from entry containing both an interior and trailing backslash, causing the add_implied_include() function to under-count the trailing backslash when sizing the destination buffer."},{"lang":"es","value":"rsync 3.2.5 anterior a 3.5.0 contiene una vulnerabilidad de escritura fuera de límites en el heap que permite a atacantes remotos no autenticados escribir un byte controlado por el atacante más allá del final de una asignación de heap al proporcionar una entrada files-from manipulada. Los atacantes pueden activar la vulnerabilidad contra un módulo de demonio rsync de solo lectura al proporcionar una entrada files-from que contenga tanto una barra invertida interna como una final, lo que hace que la función add_implied_include() subestime la barra invertida final al dimensionar el búfer de destino."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"RsyncProject","product":"rsync","defaultStatus":"unaffected","repo":"https://github.com/RsyncProject/rsync","packageURL":"pkg:github/RsyncProject/rsync","versions":[{"version":"3.2.5","lessThanOrEqual":"3.4.4","versionType":"semver","status":"affected"},{"version":"3.5.0","versionType":"semver","status":"unaffected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-13T17:36:35.892122Z","id":"CVE-2026-70461","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Secondary","description":[{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2.5","versionEndExcluding":"3.5.0","matchCriteriaId":"7CCCC8D6-4B14-4F40-A03F-CAA2FED1BB70"}]}]}],"references":[{"url":"https://github.com/RsyncProject/rsync/releases/tag/v3.5.0","source":"disclosure@vulncheck.com","tags":["Product","Release Notes"]},{"url":"https://github.com/RsyncProject/rsync/security/advisories/GHSA-jhxm-j4mq-3fj4","source":"disclosure@vulncheck.com","tags":["Vendor Advisory"]},{"url":"https://www.vulncheck.com/advisories/rsync-heap-out-of-bounds-write-via-files-from-entry","source":"disclosure@vulncheck.com","tags":["Release Notes","Third Party Advisory"]}]}}